Wrench.



PATENTED APR.26,1904. W. E. ,SNBDIKER.

. WRENCH. APPLICATION FILED MAYER, 1903.

N0 MODEL.

Tove/@2507" A By lw'S flliorloeg UNITED STATES Patented April 26, 1904.

PATENT OFFICE.

- WlLLIAM E. SNEDIKER, OF CAMDEN, NEW JERSEY.

WRENCH...

SPECIFICATION formingpart of Letters Patent No. 758,568, dated April 26,1904.

Application filed MayZQ, 1903. Serial No. 159,283. (No model.) j v I Tat whom it may concern:

Be it known that I, WILLIAM E. SNEDIKER a citizen of the United States,residing at Camden, in the county of Camden and State of New Jersey,have invented certain new and useful Improvements in Vl renches, ofwhich the following is a specification.

My invention relates to improvements in quick-adjusting wrenches, andparticularly to wrenches in which is used a toggle-pawl ,between the.fixed and movable jaws.

The object of my inventionis to simplify the constructionof a wrench byreducing the number of parts and to form said parts in such a mannerthat they may be quickly assembled.

A still further object of myinvention is to construct the fixed head ofthe wrench so that the toggle-pawl may be held in position without apivot-pin, which tends to weaken the parts.

' A still further object of invention is to make the fixed headin onepiece with the handle and so formingsaid head that the movable jaw willbe fulcr'umed in said head instead of having the head pivoted to thehandle, as has been done heretofore.

Referring to the drawings, Figure 1 is a longitudinal sectional view ofa wrench, showing my invention embodied therein. Fig. 2 is a viewsimilar to Fig. 1, showing the parts in a difi'erent position, as whenclamping an object. Fig. 3 is a sectional view of the head of thewrench, sh0'wing the parts detached. Fig. 4 is a sectional View, as online 4 4, Fig. 1. Fig. 5 is a sectional View, as on line 5 5, Fig. 3. j

In the drawings, A represents the handle, having at one end a head "Bformed thereon, said head being made in one piece with said handle. 1

C represents a sliding bar carrying the movable jaw C, in which isprovided the teeth G which latter are adjacent to teeth B in the fixedjaw B secured in the head B. The said sliding bar O is T shape incross-section, having the projecting portions 0 and C as shown in Fig.4. Said projections are strengthened by fillets C where they join thehead O.

In the head B is formed an aperture B as and 4.)

' Grooves B are provided for the projections C and C of the sliding barC. Said sliding bar rests on the shoulders B and it is fulcrumed at thepoint B so that the head of the wrench and said sliding bar may take thepositions shown in Fig. 2, when sufficient force is placed on the handleA to force the teeth of the jaws into theobject to be acted 5 upon, sothat said teeth will not slip on said object.

In the head of the wrench is formed a recess or socket B. (Clearly shownin Figs. 3 In this socket fits'the head D of the toggle-pawl D, whichsimply rests in said socket and .is held in position by the end of ofthe toggle-pawl. Teeth D are provided on the upper surface. of saidtoggle-pawl, which engage teeth C in the lower. surface of the slidingbar C. The spring [2' holds said toggle pawl up against said slidingbar.

The toggle-pawl D is held up with'suflicient force to slightly raise theinner end of the sliding bar up ofi the shoulders B, so that the uppersurface of said sliding bar will contact with the spring 6 It .will thusbe seen that by the action of the two springs 6 and the teeth D and Cwill remain in engagement. When the handle D of the togglepawl isdepressed, the sliding bar C will rest on the shoulders B and slide freeof the toggle-pawl and also free of the action of the spring 6 as theend of the spring b is held by shoulders B", so that it cannot followthe top of the sliding bar and bind the same. Said spring 6 will yieldsufliciently to allow the sliding bar and the head B to take theposition shown in Fig. 2.

The fulcrum B upon which the sliding bar C moves, is formed as closelyas possible to the center of the socket B in which the head of thetoggle-pawl rests. This construction will allow the fixed head andsliding bar to move in relation to each other without changing thedistance between the head of the toggle-pawl and the sliding bar, theresult being to keep the teeth of the toggle-pawl in perfect engagementwith the teeth in the sliding bar.

The grooves B are narrow at the fulcrumthe spring 6 contacting with theshoulder d point B and wider at the outer ends, so that the sliding barC may rock on said fulcrumpoint. The shoulders forming the grooves B donot bind the projections C and (1* of the sliding bar at the inner endwhen the jaws of the wrench are in action. The entire strain comes onthe toggle-pawl and the fulcrum B. By this arrangement of the parts thenecessity of having the head of the wrench pivoted to the handle isavoided.

A pin C is placed in the end of the sliding bar to keep the sliding barfrom dropping through the head of the wrench when the toggle-pawl isdepressed. When it is desired to take the wrench apart, said pin isremoved and the sliding bar withdrawn from the head. By raising thehandle D of the toggle-pawl the spring I) will disengage the shoulder (Zon the toggle-pawl, and the said toggle-pawl may be withdrawn from thesocket B 7 Having thus described my invention, I claim and desire tosecure by LettersPatent 1. In a wrench the combination of a fixed head,a movable head, a sliding bar carrying said movable head, a projectionon either side of said sliding bar, shoulders formed on the interior ofthe fixed head, said shoulders forming a fulcrum and guides for saidsliding bar, and a toggle-pawl acting between said fixed head and saidsliding bar substantially as described.

2. In a Wrench the combination of a fixed head, a sliding bar carryingthe movable head, shoulders formed in said fixed head adapted to engageprojections on either side of said sliding bar, a spring to hold saidsliding bar down on said shoulders, a toggle-pawl, and a spring adaptedto hold said toggle-pawl in engagement with said sliding bar,substantially as described.

3. In a wrench the combination of a fixed head, a movable head, asliding bar carrying said movable head, projections on either side ofsaid sliding bar, shoulders in the fixed head to receive saidprojections, a spring to act upon the upper surface of said sliding bar,shoulders formed in said fixed head to limit the movement of saidspring, a toggle-pawl carried by said fixed head, and a spring adaptedto hold said toggle-pawl in engagement with said sliding bar,substantially as described.

4. In a wrench the combination of a fixed head, a movable head, asliding bar carrying said movable head, a projection on either side ofsaid sliding bar, shoulders formed on the interior of the fixed head,said shoulders forming a fulcrum and guides for said sliding bar,

a toggle-pawl pivoted in said fixed head ad,

jacent to said fulcrum so that said sliding bar can rock on said fulcrumwithout changing the relation between the toggle-pawl and the slidingbar, substantially as described.

5. In a wrench the combination of a fixed head, a movable head, asliding bar carrying said movable head, a projection on either side ofsaid sliding bar, shoulders formed on the interior of the fixed head,said shoulders forming a fulcrum and guides for said sliding bar, and atoggle-pawl having a shoulder engaged by a spring in the fixed head,said spring 7 adapted to hold said toggle-pawl in position and also tokeep the same in engagement with said sliding bar, substantially asdescribed.

In testimony whereof I afiiix my signature in presence of two witnesses.

WILLIAM E. SNEDIKER.

